Thursday, June 26, 2014

MaTh with CCSS 5.NBT.B.6

This is June so we are still focusing on 5th Grade for MaTh activity Thursday : )

I was looking at CCSS 5.NBT.B.6 the other day. It reads: Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.

It basically means that students can do long division and be able to understand the concept and what is happening instead of just doing the typical format. Do your students make arrays or area models when doing this?Here is a sample division problem I worked on...

2 comments:

Hey, Lucy! Thanks for following me on Twitter (@MathDavidUtah). How about the partial quotients way? It is very similar (should I even say exactly like?) your expanded notation/decomposed number example, but it is in a standard algorithm format with a twist that allows for keeping track of everything in a logical and organized way. Go to: http://www.educreations.com/lesson/view/partial-quotients/22827442/?ref=link . I think it is really important in long division to preserve place value notions. The standard algorithm is notorious for ignoring that really important concept. Partial quotients, properly done, maintains place value. Thanks for the blog! - David